A Houston doctor who praises hydroxychloroquine and says that face masks aren’t necessary to stop transmission of the highly contagious coronavirus has become a star on the right-wing internet, garnering tens of millions of views on Facebook on Monday alone. Donald Trump Jr. declared the video of Stella Immanuel a “must watch,” while Donald Trump himself retweeted the video.

Before Trump and his supporters embrace Immanuel’s medical expertise, though, they should consider other medical claims Immanuel has made—including those about alien DNA and the physical effects of having sex with witches and demons in your dreams.

Immanuel, a pediatrician and a religious minister, has a history of making bizarre claims about medical topics and other issues. She has often claimed that gynecological problems like cysts and endometriosis are in fact caused by people having sex in their dreams with demons and witches.

She alleges alien DNA is currently used in medical treatments, and that scientists are cooking up a vaccine to prevent people from being religious. And, despite appearing in Washington, D.C. to lobby Congress on Monday, she has said that the government is run in part not by humans but by “reptilians” and other aliens.